THE DEATH SPIRAL OF PROGRESSIVE INCOME TAX RATES: “A more progressive tax code now leverages the negative impact of slow economic growth. The share of all individual income taxes paid by the top 1% has risen to 41.8% in 2008 from 17.4% in 1980—but almost two-thirds of the income from the top 1% comes from nonwage income, including capital gains, dividends and proprietor’s profits.”